0.8*(220-a)=152

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Solution for 0.8*(220-a)=152 equation:


Simplifying
0.8(220 + -1a) = 152
(220 * 0.8 + -1a * 0.8) = 152
(176 + -0.8a) = 152

Solving
176 + -0.8a = 152

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-176' to each side of the equation.
176 + -176 + -0.8a = 152 + -176

Combine like terms: 176 + -176 = 0
0 + -0.8a = 152 + -176
-0.8a = 152 + -176

Combine like terms: 152 + -176 = -24
-0.8a = -24

Divide each side by '-0.8'.
a = 30

Simplifying
a = 30

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